calliper rule

13 LETTERS · STARTS WITH C

calliper rule is a valid 13-letter word worth 16 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3A1L1L1I1P3E1R1R1U1L1E1

3 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 1 + 1 + 1 + 1 =16 PTS

DOUBLE WORD → 32TRIPLE WORD → 48

MEANING

What does calliper rule mean?